乐音信号起始时间检测之谱能流法的评价与改进

Evaluation and improvement of the spectral energy flux detection method for the onset of music signal

对乐音信号起始时刻检测的谱能流法进行了验证,详细分析了该算法各环节对检测性能的影响。用中心加权的中值滤波器代替谱能流法中的普通中值滤波器,使算法性能得到提高。

The Spectral Energy Flux （SEF） algorithm for the onset of music signal is verified, and the influences of the SEF on the detected performance are evaluated in detail. The method that replaces the median filter of SEF with a weighted median filter can improve the property of the algorithm.